[URL="http://api.tweetmeme.com/share?url=http://espn.go.com/nfl/story/_/id/7122375/st-louis-rams-sam-bradford-expected-start-week-7-source-says&service=bit.ly&source=espn"][IMG]http://api.tweetmeme.com/imagebutton.gif?url=http://espn.go.com/nfl/story/_/id/7122375/st-louis-rams-sam-bradford-expected-start-week-7-source-says[/IMG][/URL]Rams quarterback Sam Bradford, who has a high left ankle sprain and was in a walking boot on Monday, is expected to start Sunday against the Dallas Cowboys, an NFL source tells ESPN NFL Insider Adam Schefter.